Noninterest Revenue and Noninterest Expense - Noninterest Expense (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||||
|---|---|---|---|---|---|---|
Jun. 30, 2025 |
Mar. 31, 2025 |
Jun. 30, 2024 |
Mar. 31, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Noninterest Income (Expense) [Abstract] | ||||||
| Legal expense | $ 118 | $ 317 | $ 239 | $ 245 | ||
| FDIC-related expense | 302 | 291 | 1,264 | |||
| FDIC-related expense | 291 | |||||
| Operating losses | 314 | 323 | 700 | 622 | ||
| Contribution of Visa shares | $ 0 | $ 1,000 | $ 0 | $ 1,000 | ||
| FDIC special assessment expense (release) | $ (323) | $ 725 | ||||